🧪 In the laboratory, safety equipment such as laboratory coat, safety goggles, and protective gloves must be used.
⚠️ Accidents can occur if safety rules are not followed.
📝 Always follow the instructions given by your teacher.
🔥 Know the fire escape route and read safety precautions before doing an experiment.
👓 Wear safety goggles when heating or mixing substances.
💇♀️ Tie up long hair and tuck in school ties when doing experiments.
Follow laboratory safety rules to reduce accidents.
Chemicals in the laboratory have hazard warning symbols.
Proper handling of chemicals is important.
Accidents in the laboratory should be handled according to the teacher's instructions.
A fire in the laboratory can be put out by removing one of the three conditions of the fire triangle.
Further exploration on laboratory safety will be done in the following lessons.
Home equity loans 9.5%. Investing in oil, generating more income.
墙内iPhone都被阉割了哪些功能?苹果的iPhone15发布了,准备购买之前,先看看国内和国外的功能差异有哪些?Tim Cook介绍的,是给全球人民用的,我们用得稍有差异。
Do politics make us irrational? - Jay Van Bavel
Wuthering Heights by Emily Brontë | Chapter 14
Entrevista a Karin Abensur para la revista Pesca Responsable
Un modelo de negocio para ser agentes de cambio | Juanca Sznak | TEDxTukuy